London: Internet search giant Google is offering 3.14159 million dollars in cash rewards to any hacker who can crack its Chrome operating system.
The figure is a nod to pi, an irrational number that has intrigued mathematicians for thousands of years.
Previously the tech giant has offered reward of one million and two million dollars to crack its systems.
The most likely outcome is that multiple hacks momentarily compromise the system with several contestants earning up to 100,000 dollars each, or 150,000 dollars should their hack survive a system reboot, the Daily Mail reports.
For a hack to count, it must be delivered via webpages on a basic-model Samsung 550 Chromebook over a Wi-Fi connection, the report said.
Google's previous contests, CanSecWest 2012 and Hack in the Box, focused on compromising the Chrome browser but not the same-named OS.
This year's Pwnium hacking contest was started last year as an alternative to the Pwn2Own contest after the latter temporarily changed its rules so that successful hackers didn't have to show their methods.